[amsat-bb] Power output for using AO-73 transponder
n8hm at arrl.net
Sun Dec 8 12:13:24 PST 2013
FYI - In a sidebar on their website, AMSAT-UK requests that stations limit
power output to 25W EIRP for using the AO-73's transponder.
"FUNcube-1 / AO-73
Radio Communications Subsystem
• 145.935 MHz BPSK Telemetry 30 or 300 mW
• Inverting SSB/CW transponder 300 mW PEP
- 435.150 – 435.130 MHz Uplink LSB
- 145.950 – 145.970 MHz Downlink USB
Educational Telemetry beacon is 300 mW during day and 30 mW at night.
Transponder is only active during night passes.
Please use a maximium uplink power of 5 watts to a 7 dBi gain antenna (25 w
EIRP). Lower power will also work well.
If adjusting for Doppler shift manually try tuning the uplink frequency
while transmitting to keep the downlink constant."
Paul Stoetzer, N8HM
More information about the AMSAT-BB